Shockproof device

The invention provides a shockproof device. The shockproof device is composed of a main body, multiple covers and multiple vibration reduction units, wherein multiple eccentric chambers are arranged inside the main body in a point symmetry mode. The wall of each eccentric chamber comprises a thick wall portion and a thin wall portion, wherein the thick wall portion is opposite to the thin wall portion. The thick wall portion of each eccentric chamber and the thick wall portion of an adjacent eccentric chamber are located on different sides. Each vibration reduction unit is arranged in the corresponding eccentric chamber of the main body, and each eccentric chamber is sealed with a cover so that the corresponding vibration reduction unit can be prevented from leaving the eccentric chamber. The dimension of the vibration reduction units is smaller than the volume of the eccentric chambers, so that when the main body vibrates under stress, the vibration reduction units apply force to the walls of the eccentric c